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Group-Based Channel Access Scheme for a V2I Communication System using Smart Antenna

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5 Author(s)
Sung-Yeop Pyun ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea ; Widiarti, H. ; Yong-Jin Kwon ; Jong-Wuk Son
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We propose a vehicle-to-infrastructure (V2I) communication system that utilizes a smart antenna technology to increase service coverage and system throughput. During contention-based channel access, a collision occurs when more than one vehicle selects the same minislot to transmit an access signal to an infrastructure. To solve this problem, we propose a group-based channel access scheme. Numerical analysis and simulation results show that the proposed scheme can help to reduce the number of collisions that occur during channel access.

Published in:

Communications Letters, IEEE  (Volume:15 ,  Issue: 8 )